Submit TestEchoTwo for a clean end-to-end check

bots/java/TestEchoTwo/TestEchoTwo.cmd

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+@echo off
+setlocal
+set BOT_API_VERSION=1.3.1
+if "%RUMBLE_JAVA_CACHE%"=="" set "RUMBLE_JAVA_CACHE=%TEMP%\rumble-bots-java"
+if not exist "%RUMBLE_JAVA_CACHE%" mkdir "%RUMBLE_JAVA_CACHE%"
+set "JAR=%RUMBLE_JAVA_CACHE%\robocode-tankroyale-bot-api-%BOT_API_VERSION%.jar"
+if not exist "%JAR%" (
+  curl -fsSL -o "%JAR%.tmp" "https://repo.maven.apache.org/maven2/dev/robocode/tankroyale/robocode-tankroyale-bot-api/%BOT_API_VERSION%/robocode-tankroyale-bot-api-%BOT_API_VERSION%.jar"
+  if errorlevel 1 exit /b 1
+  move /y "%JAR%.tmp" "%JAR%" >nul
+)
+java -cp "%JAR%" "%~dp0src\TestEchoTwo.java" %*
+exit /b %errorlevel%

bots/java/TestEchoTwo/TestEchoTwo.json

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+{
+  "name": "TestEchoTwo",
+  "version": "1.0.0",
+  "authors": ["Flemming N. Larsen"],
+  "description": "Test submission that turns its gun and fires at scanned opponents. Used to check the test Rumble end to end.",
+  "platform": "JVM",
+  "programmingLang": "Java 25",
+  "gameTypes": ["1v1", "melee", "twinduel"],
+  "license": "Apache-2.0"
+}

bots/java/TestEchoTwo/TestEchoTwo.sh

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+#!/usr/bin/env sh
+set -eu
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+BOT_API_VERSION=1.3.1
+CACHE_DIR="${RUMBLE_JAVA_CACHE:-${TMPDIR:-/tmp}/rumble-bots-java}"
+JAR="$CACHE_DIR/robocode-tankroyale-bot-api-$BOT_API_VERSION.jar"
+if [ ! -f "$JAR" ]; then
+  mkdir -p "$CACHE_DIR"
+  curl -fsSL -o "$JAR.$$.tmp" "https://repo.maven.apache.org/maven2/dev/robocode/tankroyale/robocode-tankroyale-bot-api/$BOT_API_VERSION/robocode-tankroyale-bot-api-$BOT_API_VERSION.jar"
+  mv "$JAR.$$.tmp" "$JAR"
+fi
+exec java -cp "$JAR" "$SCRIPT_DIR/src/TestEchoTwo.java" "$@"

bots/java/TestEchoTwo/src/TestEchoTwo.java

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+import dev.robocode.tankroyale.botapi.Bot;
+import dev.robocode.tankroyale.botapi.events.ScannedBotEvent;
+
+public class TestEchoTwo extends Bot {
+    public static void main(final String[] args) {
+        if ("1".equals(System.getenv("RUMBLE_SMOKE"))) {
+            System.out.println("RUMBLE_SMOKE_READY TestEchoTwo");
+            return;
+        }
+        new TestEchoTwo().start();
+    }
+
+    @Override
+    public void run() {
+        while (isRunning()) {
+            turnGunRight(10);
+        }
+    }
+
+    @Override
+    public void onScannedBot(final ScannedBotEvent event) {
+        fire(1);
+    }
+}